the u.s. the chinese people don't have a stay, but they are making their voices heard just the same. everything about the 18th party congress is big. 2,000 delegates. the communist elite carry enormous weight and pride and hopes for the future. but increasingly the hopes of 1.3 billion people clashed with one party state. by some estimates there's 500 protests in china every day, over corruption. last week huge protests over the expansion of a petro chemical plant. communist officials said it was good for the economy. 10,000 angry citizens said it was bad for their health. >> so where were you in the crowd? >> 35-year-old xu xinglong was in the middle of it. he shot this video on his cell phone. >> translator: the airplane quality has deteriorated for years he said. it's not just air quality but food and water. his daughter he says is always sick. his wife always sneezing. the pollution we suffer is too severe. he told us the people are not known to protest but they can't take this any more. >